How to integrate Rentman MCP with Google ADK

This guide walks you through connecting Rentman to Google ADK using the Composio tool router. By the end, you'll have a working Rentman agent that can list all crew assignments for this week, show available equipment for project 1234, create new project booking for next month through natural language commands. This guide will help you understand how to give your Google ADK agent real control over a Rentman account through Composio's Rentman MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Rentman is a platform for managing crew, equipment, and projects in one place. It streamlines scheduling, resource allocation, and project coordination for event professionals.

130 Tools

Introduction

This guide walks you through connecting Rentman to Google ADK using the Composio tool router. By the end, you'll have a working Rentman agent that can list all crew assignments for this week, show available equipment for project 1234, create new project booking for next month through natural language commands.

This guide will help you understand how to give your Google ADK agent real control over a Rentman account through Composio's Rentman MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Rentman with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLILangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get a Rentman account set up and connected to Composio
  • Install the Google ADK and Composio packages
  • Create a Composio Tool Router session for Rentman
  • Build an agent that connects to Rentman through MCP
  • Interact with Rentman using natural language

What is Google ADK?

Google ADK (Agents Development Kit) is Google's framework for building AI agents powered by Gemini models. It provides tools for creating agents that can use external services through the Model Context Protocol.

Key features include:

  • Gemini Integration: Native support for Google's Gemini models
  • MCP Toolset: Built-in support for Model Context Protocol tools
  • Streamable HTTP: Connect to external services through streamable HTTP
  • CLI and Web UI: Run agents via command line or web interface

What is the Rentman MCP server, and what's possible with it?

The Rentman MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Rentman account. It provides structured and secure access so your agent can perform Rentman operations on your behalf.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • A Google API key for Gemini models
  • A Composio account and API key
  • Python 3.9 or later installed
  • Basic familiarity with Python
2

Getting API Keys for Google and Composio

Google API Key
  • Go to Google AI Studio and create an API key.
  • Copy the key and keep it safe. You will put this in GOOGLE_API_KEY.
Composio API Key and User ID
  • Log in to the Composio dashboard.
  • Go to Settings → API Keys and copy your Composio API key. Use this for COMPOSIO_API_KEY.
  • Decide on a stable user identifier to scope sessions, often your email or a user ID. Use this for COMPOSIO_USER_ID.
3

Install dependencies

bash
pip install google-adk composio python-dotenv

Inside your virtual environment, install the required packages.

What's happening:

  • google-adk is Google's Agents Development Kit
  • composio connects your agent to Rentman via MCP
  • python-dotenv loads environment variables
4

Set up ADK project

bash
adk create my_agent

Set up a new Google ADK project.

What's happening:

  • This creates an agent folder with a root agent file and .env file
5

Set environment variables

bash
GOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-email

Save all your credentials in the .env file.

What's happening:

  • GOOGLE_API_KEY authenticates with Google's Gemini models
  • COMPOSIO_API_KEY authenticates with Composio
  • COMPOSIO_USER_ID identifies the user for session management
6

Import modules and validate environment

python
import os
import warnings

from composio import Composio
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()

warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")
What's happening:
  • os reads environment variables
  • Composio is the main Composio SDK client
  • GoogleProvider declares that you are using Google ADK as the agent runtime
  • Agent is the Google ADK LLM agent class
  • McpToolset lets the ADK agent call MCP tools over HTTP
7

Create Composio client and Tool Router session

python
composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["rentman"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url,
print(f"Composio MCP URL: {COMPOSIO_MCP_URL}")
What's happening:
  • Authenticates to Composio with your API key
  • Declares Google ADK as the provider
  • Spins up a short-lived MCP endpoint for your user and selected toolkit
  • Stores the MCP HTTP URL for the ADK MCP integration
8

Set up the McpToolset and create the Agent

python
composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Rentman operations."
    ),
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")
What's happening:
  • Connects the ADK agent to the Composio MCP endpoint through McpToolset
  • Uses Gemini as the model powering the agent
  • Lists exact tool names in instruction to reduce misnamed tool calls
9

Run the agent

bash
# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web

Execute the agent from the project root. The web command opens a web portal where you can chat with the agent.

What's happening:

  • adk run runs the agent in CLI mode
  • adk web . opens a web UI for interactive testing

Complete Code

Here's the complete code to get you started with Rentman and Google ADK:

python
import os
import warnings

from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()
warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")

composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["rentman"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url


composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Rentman operations."
    ),  
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")

Conclusion

You've successfully integrated Rentman with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Rentman using natural language commands.

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Rentman tools
  • Environment variables keep your credentials secure and separate from code
  • Clear agent instructions reduce tool calling errors
  • The ADK web UI provides an interactive interface for testing and development

You can extend this setup by adding more toolkits to the toolkits array in your session configuration.

TOOLS

Supported Tools

Every Rentman action and event your agent gets out of the box.

Delete Appointment

Tool to delete an appointment by its unique ID.

Delete Appointmentcrew Item

Tool to delete an appointmentcrew item by its numeric ID.

Delete Contact

Tool to delete a contact by its ID.

Delete contact person

Tool to delete a contact person from Rentman by their numeric ID.

Delete Cost Item

Tool to delete a cost item in Rentman by its numeric ID.

Delete Crew Availability

Tool to delete a crew availability item by its ID.

Delete Project Request

Tool to delete a project request by its ID.

Delete Project Request Equipment Item

Tool to delete a project request equipment item by its ID.

Delete Time Registration

Tool to delete a time registration item in Rentman by its numeric ID.

Get Accessories Collection

Tool to retrieve a collection of accessories from Rentman.

Get Appointment Crew

Tool to retrieve the linked crew members for a specific appointment.

Get Appointmentcrew Collection

Tool to retrieve appointmentcrew collection from Rentman.

Get Appointments Collection

Tool to retrieve a collection of appointments from Rentman.

Get Contact Contactpersons

Tool to retrieve all contactpersons linked to a specific contact in Rentman.

Get Contact File Folders

Tool to get file folders linked to a contact.

Get Contact Files

Tool to get files linked to a contact.

Get Contact Person File Folders

Tool to retrieve file folders linked to a contact person in Rentman.

Get Contact Person Files

Tool to retrieve files linked to a contact person in Rentman.

Get Contact Persons

Tool to retrieve the collection of contact persons from Rentman.

Get Contacts Collection

Tool to retrieve a collection of contacts from Rentman.

Get contract invoicelines

Retrieves invoicelines linked to a specific contract.

Get Contract Files

Tool to retrieve files linked to a specific contract.

Get Contracts Collection

Tool to retrieve a collection of contracts from Rentman.

Get Costs Collection

Tool to retrieve costs collection from Rentman.

Get Crew Member Appointments

Tool to retrieve appointments for a specific crew member.

Get Crew Availability

Tool to retrieve crew availability records for a specific crew member in Rentman.

Get Crew Availability Collection

Tool to retrieve crew availability collection from Rentman.

Get Crew Collection

Tool to retrieve crew collection from Rentman.

Get Crew File Folders

Tool to retrieve file folders linked to a crew member.

Get Crew Files

Tool to retrieve files linked to a crew member.

Get Crew Member

Tool to retrieve a crew member item by ID from Rentman.

Get Crewrates Collection

Tool to retrieve crewrates collection from Rentman.

Get Crew Rates

Tool to get crew rates linked collection for a specific crew member.

Get Equipment Accessories

Tool to get accessories linked to a specific equipment item.

Get equipment collection

Tool to get the equipment collection from Rentman.

Get Equipment File Folders

Tool to get file folders linked to equipment.

Get Equipment Files

Tool to get files linked to equipment.

Get Equipment Repairs

Tool to retrieve repairs linked to a specific equipment item.

Get Equipment Serial Numbers

Tool to retrieve serial numbers linked to a specific equipment item.

Get Equipment Sets Content Collection

Tool to retrieve the equipment sets content collection from Rentman.

Get Equipment Sets Content

Tool to get equipment sets content linked collection for a specific equipment item.

Get Equipment Stockmovements

Tool to get stockmovements linked collection for a specific equipment item.

Get Files Collection

Tool to retrieve files collection from Rentman.

Get Folder Item

Tool to retrieve a folder item by ID from Rentman.

Get Folders Collection

Tool to retrieve folders collection from Rentman.

Get Invoice Files

Tool to retrieve files linked to an invoice in Rentman.

Get Invoice Invoicelines

Tool to retrieve invoicelines linked to a specific invoice.

Get Invoice Lines

Tool to retrieve invoicelines collection from Rentman.

Get Invoice Payments

Tool to retrieve payments linked to a specific invoice.

Get Invoices Collection

Tool to retrieve a collection of invoices from Rentman.

Get Ledgercodes Collection

Tool to retrieve ledger codes collection from Rentman.

Get Payments Collection

Tool to retrieve a collection of payments from Rentman.

Get Project Contracts

Tool to retrieve contracts linked to a specific project from Rentman.

Get Project Costs

Tool to retrieve costs linked to a specific project from Rentman.

Get Projectcrew Collection

Tool to retrieve projectcrew collection from Rentman.

Get Project Equipment Collection

Tool to retrieve a collection of project equipment from Rentman.

Get Projectequipmentgroup Collection

Tool to retrieve projectequipmentgroup collection from Rentman.

Get project equipment group project equipment

Tool to get projectequipment linked collection for a specific projectequipmentgroup.

Get Project File Folders

Tool to retrieve file folders linked to a specific project.

Get Project Files

Tool to retrieve files linked to a project.

Get Project Function Group Project Functions

Tool to get project functions linked to a specific project function group in Rentman.

Get Project Function Groups Collection

Tool to retrieve a collection of project function groups from Rentman.

Get Project Function Crew

Tool to get project crew linked to a specific project function.

Get Projectfunction Projectvehicles

Tool to retrieve project vehicles linked to a project function.

Get Projectfunctions Collection

Tool to retrieve a collection of projectfunctions from Rentman.

Get Project Crew

Tool to get project crew custom linked collection for a specific project.

Get Project Equipment

Tool to retrieve all equipment items linked to a specific project in Rentman.

Get project projectequipmentgroup

Tool to get projectequipmentgroup linked collection for a specific project.

Get Project Function Groups For Project

Tool to retrieve project function groups linked to a specific project in Rentman.

Get Project Projectfunctions

Tool to retrieve projectfunctions linked to a specific project.

Get Project Projectvehicles

Tool to retrieve project vehicles linked to a project.

Get Project Quotes

Tool to retrieve quotes linked to a project.

Get Project Request Equipment

Tool to retrieve projectrequestequipment linked to a specific project request in Rentman.

Get Project Request Equipment Collection

Tool to retrieve project request equipment collection from Rentman.

Get Project Requests Collection

Tool to retrieve a collection of project requests from Rentman.

Get Projects Collection

Tool to retrieve a collection of projects from Rentman.

Get Project Subprojects

Tool to retrieve subprojects linked to a specific project from Rentman.

Get Projecttypes Collection

Tool to retrieve a collection of project types from Rentman.

Get Projectvehicles Collection

Tool to retrieve projectvehicles collection from Rentman.

Get Quote Files

Tool to get files linked to a quote.

Get quote invoicelines

Retrieves invoicelines linked to a specific quote.

Get Quotes Collection

Tool to retrieve a collection of quotes from Rentman.

Get Ratefactors Collection

Tool to retrieve a collection of ratefactors from Rentman.

Get Rate Ratefactors

Tool to retrieve the ratefactors custom linked collection for a specific rate.

Get Rates Collection

Tool to retrieve rates collection from Rentman.

Get Repair File Folders

Tool to get file folders linked to a repair.

Get Repair Files

Tool to get files linked to a repair.

Get Repairs Collection

Tool to retrieve a collection of repairs from Rentman.

Get Serial Number File Folders

Tool to get file folders linked to a serial number.

Get Serial Number Files

Tool to get files linked to a serial number.

Get Serialnumbers Collection

Tool to retrieve a collection of serialnumbers from Rentman.

Get Statuses Collection

Tool to retrieve a collection of statuses from Rentman.

Get Stocklocations Collection

Tool to retrieve stock locations collection from Rentman.

Get Stockmovements Collection

Tool to retrieve the stock movements collection from Rentman.

Get Subproject File Folders

Tool to get file folders linked to a subproject.

Get Subproject Project Crew

Tool to get project crew custom linked collection for a specific subproject.

Get Subproject Project Equipment

Tool to retrieve project equipment collection from a specific subproject in Rentman.

Get subproject projectequipmentgroup

Tool to get projectequipmentgroup linked collection for a specific subproject.

Get Project Function Groups For Subproject

Tool to retrieve project function groups linked to a specific subproject in Rentman.

Get Subproject Projectvehicles

Tool to retrieve project vehicles linked to a subproject.

Get Subprojects Collection

Tool to retrieve subprojects collection from Rentman.

Get Subrental Equipment Collection

Tool to retrieve a collection of subrental equipment items from Rentman.

Get Subrental Equipment Group

Tool to get subrental equipment group custom linked collection from Rentman.

Get Subrental Equipment Group Collection

Tool to retrieve the complete collection of subrental equipment groups from Rentman.

Get subrental equipment group subrental equipment

Tool to get subrentalequipment custom linked collection for a specific subrentalequipmentgroup.

Get Subrental File Folders

Tool to get file folders linked to a subrental.

Get Subrental Files

Tool to get files linked to a subrental.

Get Subrentals Collection

Tool to get subrentals collection from Rentman.

Get Subrental Subrentalequipment

Tool to retrieve subrentalequipment linked to a specific subrental in Rentman.

Get Tax Classes Collection

Tool to retrieve a collection of tax classes from Rentman.

Get Timeregistration Activities

Tool to retrieve all timeregistrationactivities linked to a specific timeregistration in Rentman.

Get Timeregistration Activities Collection

Tool to retrieve a collection of timeregistration activities from Rentman.

Get Timeregistration Collection

Tool to retrieve a collection of timeregistrations from Rentman.

Get Time Registration Files

Tool to get files linked to a time registration.

Get Vehicle File Folders

Tool to get file folders linked to a vehicle.

Get Vehicle Files

Tool to get files linked to a vehicle.

Get Vehicles Collection

Tool to retrieve a collection of vehicles from Rentman.

List Actualcontent

Tool to get actualcontent collection from Rentman.

List Equipmentassignedserials Collection

Tool to retrieve serial numbers assigned to serialized physical combinations from Rentman.

List Factorgroups

Tool to retrieve factorgroups collection from Rentman.

List Factorgroups Factors

Tool to retrieve the factors collection for a specific factorgroup.

List Factors

Tool to retrieve a collection of factors from Rentman.

List File Folders

Tool to retrieve file folders collection from Rentman.

List Leave Mutations

Tool to retrieve leave mutations collection from Rentman.

List Leave Requests

Tool to retrieve leave requests collection from Rentman.

List Leave Request Timeregistration

Tool to get timeregistration collection for a specific leave request.

List Leave Types

Tool to retrieve leave types collection from Rentman.

List Serialnumber Actualcontent

Tool to retrieve the actualcontent collection for a specific serialnumber item.

List Serialnumber Equipment Assigned Serials

Tool to retrieve equipmentassignedserials collection for a specific serialnumber item.

List Stocklocations Vehicles

Tool to retrieve vehicles collection for a stocklocation.

FRAMEWORKS

How to build Rentman MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Rentman MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Rentman MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Rentman MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Rentman MCP with Claude Cowork

Codex logo

Codex

Use Rentman MCP with Codex

OpenClaw logo

OpenClaw

Use Rentman MCP with OpenClaw

Hermes logo

Hermes

Use Rentman MCP with Hermes

CLI logo

CLI

Use Rentman MCP with CLI

LangChain logo

LangChain

Use Rentman MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Rentman MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Rentman MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Rentman MCP with LlamaIndex

CrewAI logo

CrewAI

Use Rentman MCP with CrewAI

FAQ

Frequently asked questions

With a standalone Rentman MCP server, the agents and LLMs can only access a fixed set of Rentman tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Rentman and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Google ADK fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Rentman tools.

Yes, absolutely. You can configure which Rentman scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Rentman data and credentials are handled as safely as possible.

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

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Harsha Gaddipati
Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya
Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

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Nirman Dave
CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu
Ryan Yu
Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

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Tomisin Jenrola
Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

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Co-Founder, Ingram Technologies